A multi-level protection device for electric truck battery

Abstract

The invention relates to a multi-level protection device for electric truck batteries, which can solve the problem in the prior art that the battery is deformed due to strong physical extrusion when the electric truck is hit by a collision, which eventually leads to fire or even explosion; the technical solution is Including the box body, there is a casing in the box, a battery pack inside the casing, vertical plates on the left and right sides of the casing, a first vertical plate on the inner side of the vertical plate, a second vertical plate on the outer side of the vertical plate, and a second vertical plate on the outer side of the second vertical plate. There is a third vertical plate, and there is a push rod on the outside of the third vertical plate; there is a rotating shaft on the box body, a rotating block on the rotating shaft, a positioning hole on the rotating block, a guide groove on the rotating block, the rotating shaft can be fixed, and the second vertical plate There is a guide rod, the movement of the third vertical plate can make the fixing device loosen the shaft, the guide groove is horizontal, and then the guide rod moves along the guide groove; the movement of the second vertical plate makes the vertical plate loose; the movement of the vertical plate makes the first vertical plate loose Open, the first vertical plate drives the casing to move out of the box; it can realize the multi-stage anti-collision of the battery pack in the casing, and achieve a good anti-collision effect.

Description

technical field [0001] The invention relates to the field of battery protection for electric trucks, in particular to a multi-stage battery protection device for electric trucks. Background technique [0002] In recent years, the global smog and greenhouse effect caused by fossil fuels have seriously affected the sustainable development of the traditional truck industry, so electric trucks have become a development trend. Different from traditional trucks, the collision safety performance of electric trucks should not only consider the protection of the passengers, but also the protection of the power battery; the power battery is relatively large and is usually arranged at the bottom of the electric truck; when an electric truck collides In the event of an accident, the power battery may be short-circuited due to extrusion and deformation, causing fire or even explosion. [0003] In the prior art, some methods of power-off or airbag protection are used to protect the power...

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, in order to solve the existing problems in the prior art, the purpose of the present invention is to provide a multi-level protection device for electric truck batteries, which can solve the problem of battery damage caused by strong physical extrusion when electric trucks are collided in the prior art. Deformation, which eventually leads to problems with fire and even explosion

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